Page 73 - Big data - Concept and application for telecommunications

2 Big data - Concept and application for telecommunications 2

1 Scope

This Recommendation specifies the framework and requirements for data exchange in a big data ecosystem.
This Recommendation identifies general concepts, patterns, activities, and functional requirements based on
the big data ecosystem and capabilities defined in [ITU-T Y.3600]. The functional requirements provided in
this Recommendation are derived from use cases.

2 References

The following ITU-T Recommendations and other references contain provisions which, through reference in
this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated
were valid. All Recommendations and other references are subject to revision; users of this Recommendation
are therefore encouraged to investigate the possibility of applying the most recent edition of the
Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is
regularly published. The reference to a document within this Recommendation does not give it, as a stand-
alone document, the status of a Recommendation.
[ITU-T Y.3600] Recommendation ITU-T Y.3600 (2015), Big data – Cloud computing based requirements and
capabilities.

3 Definitions

3.1 Terms defined elsewhere

This Recommendation uses the following terms defined elsewhere:
3.1.1 activity [b-ITU Y.3502]: A specified pursuit or set of tasks.
3.1.2 big data [ITU-T Y.3600]: A paradigm for enabling the collection, storage, management, analysis and
visualization, potentially under real-time constraints, of extensive datasets with heterogeneous
characteristics.
NOTE – Examples of datasets characteristics include high-volume, high-velocity, high-variety, etc.
3.1.3 metadata [b-ISO/IEC 2382]: Data about data or data elements, possibly including their data
descriptions, and data about data ownership, access paths, access rights and data volatility.
3.1.4 role [b-ITU Y.3502]: A set of activities that serves a common purpose.

3.1.5 sub-role [b-ITU Y.3502]: A subset of the activities of a given role.

3.2 Terms defined in this Recommendation

This Recommendation defines the following terms:
3.2.1 big data exchange: Multiple processes consisting of data import and data export within a big data
ecosystem.
NOTE – A big data ecosystem defines necessary activities for roles providing and consuming big data services
as well as relationships between roles (see [ITU-T Y.3600]).
3.2.2 data catalogue: A listing of all metadata which a data broker makes available.

3.2.3 data export: A process for delivering data.
3.2.4 data import: A process for receiving data.
3.2.5 entity: A grouping of big data roles and sub-roles that can be played by a party.

3.2.6 processed data: Data produced by processing steps in a big data ecosystem.
NOTE – Processing steps include data collection, data preparation, data visualisation and data analysis.

Moving data – Data exchange and data flow 65